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Nickel - Wikipedia
Nickel | Definition, Properties, Symbol, Uses, & Facts
Nickel - Simple English Wikipedia, the free encyclopedia
nickel summary | Britannica
A Brief History of the Nickel | Smithsonian
Nickel Element Facts and Properties - ThoughtCo
Nickel - Element information, properties and uses | Periodic Table
Nickel compounds - Wikipedia
Nickel Metal: It's Properties, History, Production & Uses
Explore the history of nickel - Nickel Institute